Home / 4,260.47-6,390.77-1,298.97

Finding the Fourth Proportional to 4,260.47, 6,390.77 and 1,298.97

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Solution

The fourth proportional to 4,260.47, 6,390.77 and 1,298.97 is: 1,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.47 : 6,390.77 = 1,298.97 : x
  2. Step 2: Convert to fraction form
    4,260.47/6,390.77 = 1,298.97/x
  3. Step 3: Cross multiply
    4,260.47x = 6,390.77 × 1,298.97
  4. Step 4: Simplify right side
    4,260.47x = 8,301,412.01
  5. Step 5: Solve for x
    x = 8,301,412.01/4,260.47
  6. Step 6: Final answer
    x = 1,948.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.